Officials today announced they’ve signed the former WEC champion and UFC/Strikeforce veteran to its middleweight division.

Riggs enters the organization with six wins in his past seven fights, which have taken place between 170 and 185 pounds.

Officials did not announce if the 28-year-old fighter will be part of an expected season-four middleweight tournament, which kicks off in March on MTV2.

Riggs, a two-time All-American high-school wrestler and Golden Gloves champ, made his pro MMA debut as a 17-year-old. Past wins have come over the likes of Nick Diaz, Kendall Grove, Chris Lytle and Rob Kimmons. But in recent years, the Arizona native has struggled with injuries, though he said he’s now injury-free.

“Bellator has a lot of well-rounded, talented guys in their middleweight division – guys like Bryan Baker, Eric Schambari and, of course, the middleweight champion Hector Lombard,” Riggs stated. “There are some really good middleweights for me to test myself against, and it was one of the reasons I came to Bellator.”

Bellator also recently added fellow Strikeforce vet Jay Hieron to its roster. Hieron is the only fight who’s defeated Riggs during his recent surge.

“Joe Riggs is a battle tested veteran who brings it in every fight,” Bellator Chairman and CEO Bjorn Rebney stated. “He is a great addition to our middleweight division, and I’m looking forward to seeing Joe in action during season four.”